1. School of Forestry Northern Arizona University PO Box 15018, 200 East Pine Knoll Drive, Flagstaff AZ 86011 U.S.A.
2. Mountain Studies Institute 679 East 2nd Avenue, Durango Colorado 81301 U.S.A.
3. Department of Environmental Science and Policy University of California—Davis One Shields Avenue, Davis CA 95616 U.S.A.
4. Department of Biological Sciences and Merriam‐Powell Center for Environmental Research Northern Arizona University PO Box 5640, Flagstaff AZ 86011 U.S.A.
5. School of Earth and Sustainability Northern Arizona University PO Box 5694, Flagstaff AZ 86011 U.S.A.